Thanks.    

  I fiddled with this a while back and the best I could get was a system to hide the planets via sensor blockers.
you say to put that some modded lines into the "defense base"  where exactly is that?
Here is the crap one I wrote.  I used for a while, and it seemed to work.
Name                := Advanced System Cloaking Shield Facility 
Description         := Finely tuned cloaking feild in an array that prevents scanning. 
Facility Group      := Shields
Facility Family     := 39
Roman Numeral       := 0
Restrictions        := None
Pic Num             := 8
Cost Minerals       := 15000
Cost Organics       := 0
Cost Radioactives   := 4000
Number of Tech Req  := 1
Tech Area Req 1     := Shields
Tech Level Req 1    := 10
Number of Abilities := 6
Ability 1 Type      := Planet - Shield Generation
Ability 1 Descr     := Generates 5000 pts of shielding for the planet during combat.
Ability 1 Val 1     := 5000
Ability 1 Val 2     := 0
Ability 2 Type        := Cloak Level
Ability 2 Descr       := Prevents level 3 Active EM scans.
Ability 2 Val 1       := EM Active
Ability 2 Val 2       := 4
Ability 3 Type        := Cloak Level
Ability 3 Descr       := Prevents level 3 Passive EM scans.
Ability 3 Val 1       := EM Passive
Ability 3 Val 2       := 4
Ability 4 Type        := Cloak Level
Ability 4 Descr       := Prevents level 3 Psychic scans.
Ability 4 Val 1       := Psychic
Ability 4 Val 2       := 4
Ability 5 Type        := Cloak Level
Ability 5 Descr       := Prevents level 3 Gravitic scans.
Ability 5 Val 1       := Gravitic
Ability 5 Val 2       := 4
Ability 6 Type        := Cloak Level
Ability 6 Descr       := Prevents level 3 Temporal scans.
Ability 6 Val 1       := Temporal
Ability 6 Val 2       := 4
Weapon Type           := None
[This message has been edited by Atrocities (edited 22 October 2001).]
[This message has been edited by Atrocities (edited 22 October 2001).]